What does error code HE mean on a LG dishwasher?

Heater error. The water supplied to the dishwasher isn't being heated.

Can I fix LG code HE myself?

Start with these safe checks: Note the code and request service. LG says HE needs a technician.

When should I call a technician for code HE?

LG says HE needs a technician. Unplug it or switch the breaker off before you remove any panel. Don't test or replace wiring, control boards, heating elements or motors under power. If you see scorching, smell burning, or the breaker trips again, leave it off and call a qualified appliance technician or electrician.

LG Dishwasher Error Code HE: Heater error

What HE means

The water supplied to the dishwasher isn't being heated.

Likely causes

Heater or heater circuit fault

Safe first checks

Note the code and request service.

When to stop

LG says HE needs a technician.

Checked against: LG USA Support: LG Dishwasher guide to error codes. Codes can differ by model and year, so confirm with your owner's manual.